US11386247B2ActiveUtilityA1

Method for designing for induction time using supplementary cementitious materials

52
Assignee: HALLIBURTON ENERGY SERVICES INCPriority: Apr 5, 2019Filed: Apr 5, 2019Granted: Jul 12, 2022
Est. expiryApr 5, 2039(~12.7 yrs left)· nominal 20-yr term from priority
Inventors:John Paul Bir SinghThomas Jason PisklakRonnie Glen MorganSiva Rama Krishna JandhyalaKrishna Babu Yerubandi
E21B 2200/20G06F 2111/10E21B 33/14C04B 40/0032C09K 8/46C04B 28/02C04B 2111/00146G06F 30/20C04B 28/04
52
PatentIndex Score
0
Cited by
13
References
19
Claims

Abstract

A method may include: providing a model of cement induction time; designing a cement composition, based at least partially, on the model of cement induction time; and preparing the cement composition.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
       1. A method comprising:
 providing a model of cement induction time, wherein the model of cement induction time comprises a regression model of induction time data and physicochemical data; 
 designing a proposed cement composition, based at least partially, on the model of cement induction time; 
 preparing the proposed cement composition; 
 modifying the proposed cement composition to produce a modified cement composition if a predicted induction time of the proposed cement composition does not meet or exceed a target induction time; 
 calculating the predicted induction time of the modified cement composition using the model of cement induction time; 
 comparing the predicted induction time of the modified cement composition to the target induction time; and 
 preparing the modified cement composition if the predicted induction time of the modified cement composition meets or exceeds the target induction time. 
 
     
     
       2. The method of  claim 1  wherein the regression model is a function of at least one of chemical composition, density, temperature, or pressure. 
     
     
       3. The method of  claim 1  further comprising iteratively modifying the proposed cement composition until the predicted induction time of the modified cement composition meets or exceeds the target induction time. 
     
     
       4. The method of  claim 3  wherein iteratively modifying the proposed cement composition comprises modifying a concentration of the water, a concentration of at least one cementitious component, or both. 
     
     
       5. The method of  claim 1  wherein the model of cement induction time does not include a direct model of cementitious reactions. 
     
     
       6. The method of  claim 1  wherein the physicochemical data comprises surface area, particle size, density, or combinations thereof. 
     
     
       7. The method of  claim 1  wherein the physicochemical data comprises specific surface area. 
     
     
       8. The method of  claim 1  wherein the model of cement induction time does not include a direct model of cementitious reactions. 
     
     
       9. The method of  claim 1  wherein the physicochemical data comprises surface area, particle size, density, or combinations thereof. 
     
     
       10. A method comprising:
 providing a plurality of cementitious components; 
 generating a design of a cement composition, wherein the cement composition comprises one or more cementitious components selected from the plurality of cementitious components; 
 calculating a predicted model parameter using a model of induction time, wherein the model of induction time comprises a regression model of induction time data and physicochemical data; 
 comparing the predicted model parameter of the cement composition to a design parameter, wherein the design parameter is at least one of induction time requirement, thickening time, and compressive strength time requirement; and 
 preparing the cement composition if the predicted design parameter meets or exceeds the design parameter. 
 
     
     
       11. The method of  claim 10  wherein the regression model is a function of at least one of chemical composition, density, temperature, or pressure. 
     
     
       12. The method of  claim 10  wherein the design parameter comprises an induction time. 
     
     
       13. The method of  claim 10  wherein the design parameter comprises a time to 345 kPa. 
     
     
       14. The method of  claim 10  wherein the design parameter comprises a time to 70 bc. 
     
     
       15. The method of  claim 10  further comprising pumping the cement composition into a wellbore. 
     
     
       16. A method comprising:
 generating a proposed cement slurry comprising two or more cementitious components; 
 inputting physicochemical properties of the two or more cementitious components into a model of cement induction time, wherein the model comprises a regression model of induction time data and physicochemical data to output a predicted cement induction time at a downhole temperature and pressure; 
 iteratively modifying the proposed cement slurry until the predicted cement induction an induction time requirement is met or exceeded; 
 preparing the proposed cement slurry; 
 measuring an induction time of the proposed cement slurry; and 
 comparing the measured induction time of the proposed cement slurry to determine if the measured induction time meets or exceeds the induction time requirement. 
 
     
     
       17. The method of  claim 16  wherein the regression model is a function of at least one of chemical composition, density, temperature, or pressure. 
     
     
       18. The method of  claim 16  wherein the physicochemical data comprises specific surface area. 
     
     
       19. The method of  claim 16  wherein the physicochemical data comprises surface area, particle size, density, or combinations thereof.

Cited by (0)

No later patents cite this yet.

References (0)

No backward citations on record.